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Author: Marco Stoller
Publisher: Elsevier
ISBN: 9780128015896
Category : Technology & Engineering
Languages : en
Pages : 0
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Book Description
The Boundary Flux Handbook summarizes over 90 chemical compounds (single compounds, in mixed solution) and different feed streams from industry (complex streams exiting the agricultural, biological, pharmaceutical, food, dye, textile, etc. industries) and the respective critical and threshold fluxes (hereafter referred to the boundary flux), together with data on rejection and permeabilities. It gives the reader valuable data to quickly estimate membrane performances in respect to productivity, selectivity and longevity, and permits to estimate capital and operating costs of membrane processes during the plant design operations. The book is valuable for scientific researchers and chemical engineers working with membrane technology as a reference for lab work, membrane process design and control. For each specific feedstock, only the best performing membrane(s) are listed. At least one commercial membrane module and a maximum of 4 different choices were reported, in order to assure the possibility to easily integrate the proposed membranes into the systems by contacting the relevant commercial partner, and to define the best choice of the pretreatment steps, permitting quick membrane process optimization or revamping operations.
Author: Marco Stoller
Publisher: Elsevier
ISBN: 9780128015896
Category : Technology & Engineering
Languages : en
Pages : 0
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Book Description
The Boundary Flux Handbook summarizes over 90 chemical compounds (single compounds, in mixed solution) and different feed streams from industry (complex streams exiting the agricultural, biological, pharmaceutical, food, dye, textile, etc. industries) and the respective critical and threshold fluxes (hereafter referred to the boundary flux), together with data on rejection and permeabilities. It gives the reader valuable data to quickly estimate membrane performances in respect to productivity, selectivity and longevity, and permits to estimate capital and operating costs of membrane processes during the plant design operations. The book is valuable for scientific researchers and chemical engineers working with membrane technology as a reference for lab work, membrane process design and control. For each specific feedstock, only the best performing membrane(s) are listed. At least one commercial membrane module and a maximum of 4 different choices were reported, in order to assure the possibility to easily integrate the proposed membranes into the systems by contacting the relevant commercial partner, and to define the best choice of the pretreatment steps, permitting quick membrane process optimization or revamping operations.
Author: B.A. Hutchison
Publisher: Springer Science & Business Media
ISBN: 9400953054
Category : Science
Languages : en
Pages : 683
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Book Description
The effects of meteorological phenomena upon forest produc tivity and forestry operations have been of concern for many years. With the evolution of system-level studies of forest eco system structure and function in the International Biological Program and elsewhere, more fundamental interactions between forest ecosystems and the atmosphere received scientific atten tion but the emphasis on meteorological and climatological effects on forest processes remained. More recently, as recogni tion has developed of potential and actual problems associated with the atmospheric transport, dispersion, and deposition of airborne pollutants, the effects of forest canopies upon boundary-layer meteorological phenomena has come under scientific scrutiny. Looking to the future, with rising atmospheric con centrations of C02 and increasing competition for the finite fresh-water resources of the earth, interest in the role of forests in global C02 and water balances can also be expected to intensify. Thus, the nature of forest canopy-atmosphere interac tions, that is to say, the meteorological phenomena occurring in and above forest canopies, are of importance to a wide variety of scientific and social-issues. Demands for forest meteorological information currently exceed levels of knowledge and given the economic constraints of science in general and environmental sciences in particular, chances for major improvements in scien tific support in the near future are slim. Unfortunately, studies of environmental phenomena in and above forests are costly and logistically difficult. Trees, the ecological dominants of forest ecosystems, are the largest of all terrestrial organisms.
Author: L. Tourrette
Publisher: Nova Publishers
ISBN: 9781560729402
Category : Mathematics
Languages : en
Pages : 396
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Book Description
CD-ROM contains: Sections omitted from printing of text.
Author: M. Necati Ozisik
Publisher: Courier Corporation
ISBN: 0486782867
Category : Technology & Engineering
Languages : en
Pages : 515
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Book Description
Intended for first-year graduate courses in heat transfer, this volume includes topics relevant to chemical and nuclear engineering and aerospace engineering. The systematic and comprehensive treatment employs modern mathematical methods of solving problems in heat conduction and diffusion. Starting with precise coverage of heat flux as a vector, derivation of the conduction equations, integral-transform technique, and coordinate transformations, the text advances to problem characteristics peculiar to Cartesian, cylindrical, and spherical coordinates; application of Duhamel's method; solution of heat-conduction problems; and the integral method of solution of nonlinear conduction problems. Additional topics include useful transformations in the solution of nonlinear boundary value problems of heat conduction; numerical techniques such as the finite differences and the Monte Carlo method; and anisotropic solids in relation to resistivity and conductivity tensors. Illustrative examples and problems amplify the text, which is supplemented by helpful appendixes.
Author:
Publisher:
ISBN:
Category : Hydrology
Languages : en
Pages : 96
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Book Description
Author: Hans-Jörg G. Diersch
Publisher: Springer Science & Business Media
ISBN: 364238739X
Category : Science
Languages : en
Pages : 1018
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Book Description
FEFLOW is an acronym of Finite Element subsurface FLOW simulation system and solves the governing flow, mass and heat transport equations in porous and fractured media by a multidimensional finite element method for complex geometric and parametric situations including variable fluid density, variable saturation, free surface(s), multispecies reaction kinetics, non-isothermal flow and multidiffusive effects. FEFLOW comprises theoretical work, modeling experiences and simulation practice from a period of about 40 years. In this light, the main objective of the present book is to share this achieved level of modeling with all required details of the physical and numerical background with the reader. The book is intended to put advanced theoretical and numerical methods into the hands of modeling practitioners and scientists. It starts with a more general theory for all relevant flow and transport phenomena on the basis of the continuum approach, systematically develops the basic framework for important classes of problems (e.g., multiphase/multispecies non-isothermal flow and transport phenomena, discrete features, aquifer-averaged equations, geothermal processes), introduces finite-element techniques for solving the basic balance equations, in detail discusses advanced numerical algorithms for the resulting nonlinear and linear problems and completes with a number of benchmarks, applications and exercises to illustrate the different types of problems and ways to tackle them successfully (e.g., flow and seepage problems, unsaturated-saturated flow, advective-diffusion transport, saltwater intrusion, geothermal and thermohaline flow).
Author: Douglas Harned
Publisher:
ISBN:
Category : Aquifers
Languages : en
Pages : 358
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Book Description
Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 74
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Book Description
Author: W. Kinzelbach
Publisher: Elsevier
ISBN: 0080870163
Category : Computers
Languages : en
Pages : 345
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Book Description
With the growing concern about groundwater resources both with respect to quantity and quality, the need for groundwater modelling tools is increasing. Although there are a number of excellent introductions to the concepts of groundwater flow and pollution transport, the student or practising engineer wishing to develop a model and do practical work on the computer finds that there is still a gap between the understanding of concepts and the ability to handle the actual computations. A great deal of groundwater modelling software for personal computers and microcomputers has appeared recently, but taking these models from the shelf and applying them without a background on their capabilities often leads to disappointment and frustration. This book provides the reader with all necessary details to start modelling on his own. It gives a comprehensive introduction to the major techniques currently used in the modelling of groundwater flow and pollutant transport in groundwater. Both self-contained and comprehensive, it presents a wide variety of methods currently applied in the management, protection, and remediation of groundwater resources, which allows the reader to take the step from understanding the concepts to the ability to handle actual computations. All major techniques are illustrated by a total of 19 sample programs in BASIC which can be modified by the reader to suit his own need. The programs can be run directly on an Apple II+ or compatible personal computer, and with slight modifications, most can be transferred to other microcomputers with BASIC capability and at least 48K of central memory. The necessary modifications for running the programs on an IBM-PC are indicated in the appendix.Students and professionals in the fields of hydrogeology and civil and environmental engineering will find this to be an extremely useful book. Knowledge of the basic concepts of hydrogeology is assumed and, starting from that basis, the book will enable them to understand mathematical groundwater models and write computer programs of their own.
Author:
Publisher: DIANE Publishing
ISBN: 1428984658
Category :
Languages : en
Pages : 95
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Book Description
